Assignee
OKEN SEIKO CO LTD
JP·14 granted patents·1 pending application·211 citations·filing 1981–2021
Top patents by PatentIndex Score
15 records- 0193US6435844B1Diaphragm pumpOKEN SEIKO CO LTD·Filed 2000·Granted Aug 20, 2002·54 cites·7 claims
- 0289US10641261B2Pump with motorOKEN SEIKO CO LTD·Filed 2018·Granted May 5, 2020·4 cites·6 claims
- 0386US10641262B2Diaphragm pumpOKEN SEIKO CO LTD·Filed 2018·Granted May 5, 2020·3 cites·4 claims
- 0486US9951769B2Diaphragm pump integrally including quick discharge valve unitOKEN SEIKO CO LTD·Filed 2015·Granted Apr 24, 2018·4 cites·3 claims
- 0586US6843643B2Valve mounting arrangement in a diaphragm pumpOKEN SEIKO CO LTD·Filed 2002·Granted Jan 18, 2005·30 cites·10 claims
- 0685US7040876B2Valves for a diaphragm pumpOKEN SEIKO CO LTD·Filed 2004·Granted May 9, 2006·26 cites·11 claims
- 0780US6506033B2Miniature pump with ball-plate driveOKEN SEIKO CO LTD·Filed 2001·Granted Jan 14, 2003·19 cites·9 claims
- 0876US6206664B1Compact pumpOKEN SEIKO CO LTD·Filed 1999·Granted Mar 27, 2001·35 cites·7 claims
- 0962US4604540ACoreless motor, and a method for manufacturing the coreless motorOKEN SEIKO CO LTD·Filed 1981·Granted Aug 5, 1986·19 cites·8 claims
- 1061US2021285436A1Diaphragm pump and pressure regulating apparatusOKEN SEIKO CO LTD·Filed 2021·Application pending·0 cites
- 1156US6215208B1Miniature motor unitOKEN SEIKO CO LTD·Filed 2000·Granted Apr 10, 2001·8 cites·2 claims
- 1253US10001118B2Rapid-discharge-valve structural body and diaphragm pumpOKEN SEIKO CO LTD·Filed 2013·Granted Jun 19, 2018·0 cites·6 claims
- 1351US11225960B2Diaphragm pumpOKEN SEIKO CO LTD·Filed 2019·Granted Jan 18, 2022·0 cites·3 claims
- 1445US4476409ACoils of coreless motor and method of manufacturing the sameOKEN SEIKO CO LTD·Filed 1982·Granted Oct 9, 1984·9 cites·3 claims
- 1541US10550832B2Diaphragm pumpOKEN SEIKO CO LTD·Filed 2018·Granted Feb 4, 2020·0 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →